12 Common Symptoms Of The Flu

6. Fatigue

One of the early signs of the flu, fatigue can make you feel extremely or persistently tired, even after a long period of rest that should normally be enough to make you feel refreshed. The immune system’s attempt to fight off the virus takes a toll on your body, as your white blood cells become focused on the flu virus instead of keeping your muscle fibers and joints in good condition. Thus, you may end up feeling drained of energy and experience muscle weakness.